flake.lock: Update

[github-actions]

Automated changes by the update-flake-lock GitHub Action.

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/7f62671ffcb37436b3df7d6ae44dfdca9e5a069d?narHash=sha256-8iwNoSDOCKFnDF7f8XReiztpESA0GyFieKhWAaG7jrw%3D' (2024-04-19)
  → 'github:NixOS/nixpkgs/69661586d1c9d85e859887d95285f6fc92521657?narHash=sha256-BWzlDJpfcE7DgxtAkeXHnU69Iz6cU64yCgE6b%2Bhqds8%3D' (2024-11-26)

Running GitHub Actions on this PR

GitHub Actions will not run workflows on pull requests which are opened by a GitHub Action.

To run GitHub Actions workflows on this PR, run:

git branch -D update_flake_lock_action
git fetch origin
git checkout update_flake_lock_action
git commit --amend --no-edit
git push origin update_flake_lock_action --force